The all aluminum whole plate welding robot has a compressor cover, with a carbon steel overlapping plate thickness of about 4mm, because the upper cover is pre installed with electrical components. Therefore, it is necessary to use industrial welding machines for welding, and the welding current should not be too high. Fast welding is required. The welding speed is approximately 120-140 centimeters per minute to reduce heat input and prevent workpiece overheating. Ensure beautiful shape, 100% airtightness, and mass production capability. The industrial welding machine adopts the WINDOWS CE operating system, which is easy to operate and reliable to operate. Five digital welding power sources can be connected through the serial port, and the welding current waveform can be adjusted in the teaching box. Under high-speed welding conditions, the weld seam is uniform and fully formed.

The guiding principle in this process is to improve the shape of the weld seam by changing the shape of the arc, increasing the diameter of the arc, increasing the amount of deposited metal per unit time, changing the proportion of the mixture, and reducing surface tension. Melt pool. Using ternary gas mixture: 93% Ar, 5% CO2, 2% O2, can increase heating input, reduce the critical current value during droplet injection transition, increase the adjustable range of specifications, and reduce the bottom cutting arc voltage caused by high voltage.

Reasonable operation of the all aluminum whole plate welding robot. When welding at high speed, the arc lags behind the line's movement and the droplet transition deviates from the axis. Adjusting the angle of the spray gun, the cutting torch forms a 60 ° angle with the tangent of the circumference, overcoming the phenomenon of arc deviation from the axis. The influence of welding rod extension length is very sensitive in high-speed welding. A change in length of 3 to 5 millimeters and a change in current of 30 to 50 A will result in a wider and wider weld formation, while strictly controlling the extension length of the welding wire.
The all aluminum whole plate welding robot system adopts AC servo drive technology and high-precision, high rigidity RV reducer and harmonic reducer. It has good low-speed stability and high-speed dynamic response, and can achieve maintenance free function. Coordinated control technology can control the coordinated movement of multiple robots and locators, maintain the relative posture of welding guns and workpieces, meet the requirements of welding technology, and avoid collisions between welding guns and workpieces.

The welding trajectory tracking technology of the all aluminum whole plate welding robot has improved the flexibility and adaptability of the welding robot in welding complex workpieces. Obtain the remaining deviation of weld seam tracking through offline observation of visual sensors. Obtain compensation data based on deviation statistics and obtain the trajectory of industrial welding robots. Corrected, good welding quality can be achieved under various working conditions.
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